Section 2 Registered and recorded leases effectual against singular successors in the lands let.F5

Leases registerable under this Act, and valid and binding as in a question with the granters thereof, which shall have been duly F1registered or recorded, as herein provided, . . . F2 shall, by virtue of such registration, be effectual against any singular successor in the lands and heritages thereby let, whose F3title is completed after the date of such registration: Provided always, that, except for the purposes of F4, and subject to section 20C of, this Act, it shall not be necessary to record any such lease as aforesaid, but that all such leases which would, under the existing law prior to the passing of this Act, have been valid and effectual against any such singular successor as aforesaid, shall, though not recorded, be valid and effectual against such singular successor, as well as against the granters of the said leases.